Use bigint type in sqlserver_type when needed. Fixes #616

Author: metaskills

lib/active_record/connection_adapters/sqlserver/database_statements.rb

@@ -247,7 +247,7 @@ def sp_executesql_sql_type(attr)
           return attr.type.sqlserver_type if attr.type.respond_to?(:sqlserver_type)
           case value = attr.value_for_database
           when Numeric
-            'int'.freeze
+            value > 2_147_483_647 ? 'bigint'.freeze : 'int'.freeze
           else
             'nvarchar(max)'.freeze
           end